72315734 has 8 divisors (see below), whose sum is σ = 112214160. Its totient is φ = 34911016.

The previous prime is 72315721. The next prime is 72315779. The reversal of 72315734 is 43751327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 72315734.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623354 + ... + 623469.

It is an arithmetic number, because the mean of its divisors is an integer number (14026770).

Almost surely, 2^72315734 is an apocalyptic number.

72315734 is a deficient number, since it is larger than the sum of its proper divisors (39898426).

72315734 is a wasteful number, since it uses less digits than its factorization.

72315734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246854.

The product of its digits is 17640, while the sum is 32.

The square root of 72315734 is about 8503.8658267873. The cubic root of 72315734 is about 416.6239826853.

The spelling of 72315734 in words is "seventy-two million, three hundred fifteen thousand, seven hundred thirty-four".